backfire

  1. RJS3

    Pentair Pool Heater makes a loud bang (backfire?) when it ignites.

    I have a Pentair 200 pool heater on Natural gas. I had turned this heater on when I first opened the pool and it fired up well. Then I decided to power wash it as I was cleaning my deck. Bad idea. I killed the membrane pad. So I vacuumed and cleaned out the inside of the heater (with some...